As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a speed of 5 m/s.
Which of the objects has higher kinetic energy?
(1 point)
Responses
The 10 kg object has higher kinetic energy.
The 10 kg object has higher kinetic energy.
Both objects have zero kinetic energy.
Both objects have zero kinetic energy.
The 5 kg object has higher kinetic energy.
The 5 kg object has higher kinetic energy.
The objects have equal kinetic energy.
The 10 kg object has higher kinetic energy.
To determine which object has higher kinetic energy, we can use the equation for kinetic energy:
Kinetic Energy = 1/2 * mass * velocity^2
Let's calculate the kinetic energy for each object:
1. For the 5 kg object:
Mass = 5 kg
Velocity = 10 m/s
Kinetic Energy = 1/2 * 5 kg * (10 m/s)^2
Kinetic Energy = 1/2 * 5 kg * 100 m^2/s^2
Kinetic Energy = 250 J
2. For the 10 kg object:
Mass = 10 kg
Velocity = 5 m/s
Kinetic Energy = 1/2 * 10 kg * (5 m/s)^2
Kinetic Energy = 1/2 * 10 kg * 25 m^2/s^2
Kinetic Energy = 125 J
Therefore, the object with a mass of 5 kg has a higher kinetic energy of 250 J compared to the object with a mass of 10 kg, which has a kinetic energy of 125 J. So the correct answer is:
The 5 kg object has higher kinetic energy.
To determine which object has higher kinetic energy, we need to use the formula for kinetic energy:
Kinetic Energy (KE) = 1/2 * mass * velocity^2
Let's calculate the kinetic energy for each object:
For the 5 kg object:
KE = 1/2 * 5 kg * (10 m/s)^2 = 1/2 * 5 kg * 100 m^2/s^2 = 250 Joules
For the 10 kg object:
KE = 1/2 * 10 kg * (5 m/s)^2 = 1/2 * 10 kg * 25 m^2/s^2 = 1/2 * 250 Joules = 250 Joules
As we can see, both objects have the same kinetic energy of 250 Joules. So the answer is:
The objects have equal kinetic energy.